Paper Tape Technology


Provides physical evidence
Lower detection limits
Can monitor integrity of air sampling tube
Less prone to interference
Different tapes required for different gases
- Mineral acid tape will not detect Chlorine
- Hydrides tape will not detect Ammonia
Significant lag time between samples
Long dwell time (30-60 Sec. to reach 1/2 PEL)
Can not detect combustible or flammable gases
- High initial capital investment
- Recurring cost of replacement tapes